511841 has 16 divisors (see below), whose sum is σ = 614400. Its totient is φ = 421200.

The previous prime is 511831. The next prime is 511843. The reversal of 511841 is 148115.

511841 = T₁₆₆ + T₁₆₇ + ... + T₁₉₆.

It is a cyclic number.

It is not a de Polignac number, because 511841 - 2¹⁰ = 510817 is a prime.

It is a Duffinian number.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (511843) by changing a digit.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 6440 + ... + 6518.

It is an arithmetic number, because the mean of its divisors is an integer number (38400).

2⁵¹¹⁸⁴¹ is an apocalyptic number.

It is an amenable number.

511841 is a deficient number, since it is larger than the sum of its proper divisors (102559).

511841 is a wasteful number, since it uses less digits than its factorization.

511841 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 140.

The product of its digits is 160, while the sum is 20.

The square root of 511841 is about 715.4306395452. The cubic root of 511841 is about 79.9917178926.

Adding to 511841 its reverse (148115), we get a palindrome (659956).

The spelling of 511841 in words is "five hundred eleven thousand, eight hundred forty-one".